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<div class="header">
  <div class="headertitle"><div class="title">impl.h</div></div>
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<div class="contents">
<div class="fragment"><div class="line"><a id="l00001" name="l00001"></a><span class="lineno">    1</span><span class="comment">/*</span></div>
<div class="line"><a id="l00002" name="l00002"></a><span class="lineno">    2</span><span class="comment"> * impl.h</span></div>
<div class="line"><a id="l00003" name="l00003"></a><span class="lineno">    3</span><span class="comment"> *</span></div>
<div class="line"><a id="l00004" name="l00004"></a><span class="lineno">    4</span><span class="comment"> * Version: 2.2.6</span></div>
<div class="line"><a id="l00005" name="l00005"></a><span class="lineno">    5</span><span class="comment"> *</span></div>
<div class="line"><a id="l00006" name="l00006"></a><span class="lineno">    6</span><span class="comment"> * -----------------------------------------------------------------------------</span></div>
<div class="line"><a id="l00007" name="l00007"></a><span class="lineno">    7</span><span class="comment"> *</span></div>
<div class="line"><a id="l00008" name="l00008"></a><span class="lineno">    8</span><span class="comment"> * SPDX-License-Identifier: ISC and BSD-3-Clause</span></div>
<div class="line"><a id="l00009" name="l00009"></a><span class="lineno">    9</span><span class="comment"> *</span></div>
<div class="line"><a id="l00010" name="l00010"></a><span class="lineno">   10</span><span class="comment"> * -----------------------------------------------------------------------------</span></div>
<div class="line"><a id="l00011" name="l00011"></a><span class="lineno">   11</span><span class="comment"> *</span></div>
<div class="line"><a id="l00012" name="l00012"></a><span class="lineno">   12</span><span class="comment"> * Copyright (c) 1998, 2010, 2015 Todd C. Miller &lt;millert@openbsd.org&gt;</span></div>
<div class="line"><a id="l00013" name="l00013"></a><span class="lineno">   13</span><span class="comment"> * Copyright (c) 2018-2024 Jeffrey H. Johnson &lt;trnsz@pobox.com&gt;</span></div>
<div class="line"><a id="l00014" name="l00014"></a><span class="lineno">   14</span><span class="comment"> *</span></div>
<div class="line"><a id="l00015" name="l00015"></a><span class="lineno">   15</span><span class="comment"> * Permission to use, copy, modify, and distribute this software for any</span></div>
<div class="line"><a id="l00016" name="l00016"></a><span class="lineno">   16</span><span class="comment"> * purpose with or without fee is hereby granted, provided that the above</span></div>
<div class="line"><a id="l00017" name="l00017"></a><span class="lineno">   17</span><span class="comment"> * copyright notice and this permission notice appear in all copies.</span></div>
<div class="line"><a id="l00018" name="l00018"></a><span class="lineno">   18</span><span class="comment"> *</span></div>
<div class="line"><a id="l00019" name="l00019"></a><span class="lineno">   19</span><span class="comment"> * THE SOFTWARE IS PROVIDED &quot;AS IS&quot; AND THE AUTHOR DISCLAIMS ALL WARRANTIES</span></div>
<div class="line"><a id="l00020" name="l00020"></a><span class="lineno">   20</span><span class="comment"> * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF</span></div>
<div class="line"><a id="l00021" name="l00021"></a><span class="lineno">   21</span><span class="comment"> * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR</span></div>
<div class="line"><a id="l00022" name="l00022"></a><span class="lineno">   22</span><span class="comment"> * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES</span></div>
<div class="line"><a id="l00023" name="l00023"></a><span class="lineno">   23</span><span class="comment"> * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN</span></div>
<div class="line"><a id="l00024" name="l00024"></a><span class="lineno">   24</span><span class="comment"> * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF</span></div>
<div class="line"><a id="l00025" name="l00025"></a><span class="lineno">   25</span><span class="comment"> * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.</span></div>
<div class="line"><a id="l00026" name="l00026"></a><span class="lineno">   26</span><span class="comment"> *</span></div>
<div class="line"><a id="l00027" name="l00027"></a><span class="lineno">   27</span><span class="comment"> * -----------------------------------------------------------------------------</span></div>
<div class="line"><a id="l00028" name="l00028"></a><span class="lineno">   28</span><span class="comment"> */</span></div>
<div class="line"><a id="l00029" name="l00029"></a><span class="lineno">   29</span> </div>
<div class="line"><a id="l00030" name="l00030"></a><span class="lineno">   30</span><span class="comment">/*</span></div>
<div class="line"><a id="l00031" name="l00031"></a><span class="lineno">   31</span><span class="comment"> * -----------------------------------------------------------------------------</span></div>
<div class="line"><a id="l00032" name="l00032"></a><span class="lineno">   32</span><span class="comment"> * OpenBSD strlcat() -- 1.19 2019/01/25 00:19:25 millert</span></div>
<div class="line"><a id="l00033" name="l00033"></a><span class="lineno">   33</span><span class="comment"> * -----------------------------------------------------------------------------</span></div>
<div class="line"><a id="l00034" name="l00034"></a><span class="lineno">   34</span><span class="comment"> */</span></div>
<div class="line"><a id="l00035" name="l00035"></a><span class="lineno">   35</span> </div>
<div class="line"><a id="l00036" name="l00036"></a><span class="lineno">   36</span><span class="preprocessor">#if defined(SIR_IMPL_STRLCAT) &amp;&amp; !defined(SIR_IMPL_STRLCAT_DEF)</span></div>
<div class="line"><a id="l00037" name="l00037"></a><span class="lineno">   37</span><span class="preprocessor"># undef strlcat</span></div>
<div class="line"><a id="l00038" name="l00038"></a><span class="lineno">   38</span> </div>
<div class="line"><a id="l00039" name="l00039"></a><span class="lineno">   39</span><span class="comment">/*</span></div>
<div class="line"><a id="l00040" name="l00040"></a><span class="lineno">   40</span><span class="comment"> * Appends src to string dst of size dsize (unlike strncat, dsize is the</span></div>
<div class="line"><a id="l00041" name="l00041"></a><span class="lineno">   41</span><span class="comment"> * full size of dst, not space left).  At most dsize-1 characters</span></div>
<div class="line"><a id="l00042" name="l00042"></a><span class="lineno">   42</span><span class="comment"> * will be copied.  Always NUL terminates (unless dsize &lt;= strlen(dst)).</span></div>
<div class="line"><a id="l00043" name="l00043"></a><span class="lineno">   43</span><span class="comment"> * Returns strlen(src) + MIN(dsize, strlen(initial dst)).</span></div>
<div class="line"><a id="l00044" name="l00044"></a><span class="lineno">   44</span><span class="comment"> * If retval &gt;= dsize, truncation occurred.</span></div>
<div class="line"><a id="l00045" name="l00045"></a><span class="lineno">   45</span><span class="comment"> */</span></div>
<div class="line"><a id="l00046" name="l00046"></a><span class="lineno">   46</span> </div>
<div class="line"><a id="l00047" name="l00047"></a><span class="lineno">   47</span><span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">size_t</span></div>
<div class="line"><a id="l00048" name="l00048"></a><span class="lineno">   48</span>_sir_strlcat(<span class="keywordtype">char</span> *dst, <span class="keyword">const</span> <span class="keywordtype">char</span> *src, <span class="keywordtype">size_t</span> dsize)</div>
<div class="line"><a id="l00049" name="l00049"></a><span class="lineno">   49</span>{</div>
<div class="line"><a id="l00050" name="l00050"></a><span class="lineno">   50</span>  <span class="keyword">const</span> <span class="keywordtype">char</span> *odst  = dst;</div>
<div class="line"><a id="l00051" name="l00051"></a><span class="lineno">   51</span>  <span class="keyword">const</span> <span class="keywordtype">char</span> *osrc  = src;</div>
<div class="line"><a id="l00052" name="l00052"></a><span class="lineno">   52</span>  <span class="keywordtype">size_t</span>      n     = dsize;</div>
<div class="line"><a id="l00053" name="l00053"></a><span class="lineno">   53</span>  <span class="keywordtype">size_t</span>      dlen;</div>
<div class="line"><a id="l00054" name="l00054"></a><span class="lineno">   54</span> </div>
<div class="line"><a id="l00055" name="l00055"></a><span class="lineno">   55</span>  <span class="comment">/*</span></div>
<div class="line"><a id="l00056" name="l00056"></a><span class="lineno">   56</span><span class="comment">   * Find the end of dst and adjust bytes</span></div>
<div class="line"><a id="l00057" name="l00057"></a><span class="lineno">   57</span><span class="comment">   * left, but don&#39;t go past the end.</span></div>
<div class="line"><a id="l00058" name="l00058"></a><span class="lineno">   58</span><span class="comment">   */</span></div>
<div class="line"><a id="l00059" name="l00059"></a><span class="lineno">   59</span> </div>
<div class="line"><a id="l00060" name="l00060"></a><span class="lineno">   60</span>  <span class="keywordflow">while</span> (n-- != 0 &amp;&amp; *dst != <span class="charliteral">&#39;\0&#39;</span>)</div>
<div class="line"><a id="l00061" name="l00061"></a><span class="lineno">   61</span>    dst++;</div>
<div class="line"><a id="l00062" name="l00062"></a><span class="lineno">   62</span> </div>
<div class="line"><a id="l00063" name="l00063"></a><span class="lineno">   63</span>  dlen  =   dst - odst;</div>
<div class="line"><a id="l00064" name="l00064"></a><span class="lineno">   64</span>  n     = dsize - dlen;</div>
<div class="line"><a id="l00065" name="l00065"></a><span class="lineno">   65</span> </div>
<div class="line"><a id="l00066" name="l00066"></a><span class="lineno">   66</span>  <span class="keywordflow">if</span> (n-- == 0)</div>
<div class="line"><a id="l00067" name="l00067"></a><span class="lineno">   67</span>    <span class="keywordflow">return</span> dlen + strlen(src);</div>
<div class="line"><a id="l00068" name="l00068"></a><span class="lineno">   68</span> </div>
<div class="line"><a id="l00069" name="l00069"></a><span class="lineno">   69</span>  <span class="keywordflow">while</span> (*src != <span class="charliteral">&#39;\0&#39;</span>) {</div>
<div class="line"><a id="l00070" name="l00070"></a><span class="lineno">   70</span>    <span class="keywordflow">if</span> (n != 0) {</div>
<div class="line"><a id="l00071" name="l00071"></a><span class="lineno">   71</span>      *dst++ = *src;</div>
<div class="line"><a id="l00072" name="l00072"></a><span class="lineno">   72</span>      n--;</div>
<div class="line"><a id="l00073" name="l00073"></a><span class="lineno">   73</span>    }</div>
<div class="line"><a id="l00074" name="l00074"></a><span class="lineno">   74</span>    src++;</div>
<div class="line"><a id="l00075" name="l00075"></a><span class="lineno">   75</span>  }</div>
<div class="line"><a id="l00076" name="l00076"></a><span class="lineno">   76</span> </div>
<div class="line"><a id="l00077" name="l00077"></a><span class="lineno">   77</span>  *dst = <span class="charliteral">&#39;\0&#39;</span>;</div>
<div class="line"><a id="l00078" name="l00078"></a><span class="lineno">   78</span> </div>
<div class="line"><a id="l00079" name="l00079"></a><span class="lineno">   79</span>  <span class="keywordflow">return</span> dlen + (src - osrc); <span class="comment">/* count does not include NUL */</span></div>
<div class="line"><a id="l00080" name="l00080"></a><span class="lineno">   80</span>}</div>
<div class="line"><a id="l00081" name="l00081"></a><span class="lineno">   81</span> </div>
<div class="line"><a id="l00082" name="l00082"></a><span class="lineno">   82</span><span class="preprocessor"># define strlcat _sir_strlcat</span></div>
<div class="line"><a id="l00083" name="l00083"></a><span class="lineno">   83</span><span class="preprocessor"># define SIR_IMPL_STRLCAT_DEF 1</span></div>
<div class="line"><a id="l00084" name="l00084"></a><span class="lineno">   84</span><span class="preprocessor">#endif </span><span class="comment">/* SIR_IMPL_STRLCAT */</span><span class="preprocessor"></span></div>
<div class="line"><a id="l00085" name="l00085"></a><span class="lineno">   85</span> </div>
<div class="line"><a id="l00086" name="l00086"></a><span class="lineno">   86</span><span class="comment">/*</span></div>
<div class="line"><a id="l00087" name="l00087"></a><span class="lineno">   87</span><span class="comment"> * -----------------------------------------------------------------------------</span></div>
<div class="line"><a id="l00088" name="l00088"></a><span class="lineno">   88</span><span class="comment"> * OpenBSD strlcpy -- 1.16 2019/01/25 00:19:25 millert</span></div>
<div class="line"><a id="l00089" name="l00089"></a><span class="lineno">   89</span><span class="comment"> *-----------------------------------------------------------------------------</span></div>
<div class="line"><a id="l00090" name="l00090"></a><span class="lineno">   90</span><span class="comment"> */</span></div>
<div class="line"><a id="l00091" name="l00091"></a><span class="lineno">   91</span> </div>
<div class="line"><a id="l00092" name="l00092"></a><span class="lineno">   92</span><span class="preprocessor">#if defined(SIR_IMPL_STRLCPY) &amp;&amp; !defined(SIR_IMPL_STRLCPY_DEF)</span></div>
<div class="line"><a id="l00093" name="l00093"></a><span class="lineno">   93</span><span class="preprocessor"># undef strlcpy</span></div>
<div class="line"><a id="l00094" name="l00094"></a><span class="lineno">   94</span> </div>
<div class="line"><a id="l00095" name="l00095"></a><span class="lineno">   95</span><span class="comment">/*</span></div>
<div class="line"><a id="l00096" name="l00096"></a><span class="lineno">   96</span><span class="comment"> * Copy string src to buffer dst of size dsize.  At most dsize-1</span></div>
<div class="line"><a id="l00097" name="l00097"></a><span class="lineno">   97</span><span class="comment"> * chars will be copied.  Always NUL terminates (unless dsize == 0).</span></div>
<div class="line"><a id="l00098" name="l00098"></a><span class="lineno">   98</span><span class="comment"> * Returns strlen(src); if retval &gt;= dsize, truncation occurred.</span></div>
<div class="line"><a id="l00099" name="l00099"></a><span class="lineno">   99</span><span class="comment"> */</span></div>
<div class="line"><a id="l00100" name="l00100"></a><span class="lineno">  100</span> </div>
<div class="line"><a id="l00101" name="l00101"></a><span class="lineno">  101</span><span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">size_t</span></div>
<div class="line"><a id="l00102" name="l00102"></a><span class="lineno">  102</span>_sir_strlcpy(<span class="keywordtype">char</span> *dst, <span class="keyword">const</span> <span class="keywordtype">char</span> *src, <span class="keywordtype">size_t</span> dsize)</div>
<div class="line"><a id="l00103" name="l00103"></a><span class="lineno">  103</span>{</div>
<div class="line"><a id="l00104" name="l00104"></a><span class="lineno">  104</span>  <span class="keyword">const</span> <span class="keywordtype">char</span> *osrc   = src;</div>
<div class="line"><a id="l00105" name="l00105"></a><span class="lineno">  105</span>  <span class="keywordtype">size_t</span>      nleft  = dsize;</div>
<div class="line"><a id="l00106" name="l00106"></a><span class="lineno">  106</span> </div>
<div class="line"><a id="l00107" name="l00107"></a><span class="lineno">  107</span>  <span class="comment">/*</span></div>
<div class="line"><a id="l00108" name="l00108"></a><span class="lineno">  108</span><span class="comment">   * Copy as many bytes as will fit.</span></div>
<div class="line"><a id="l00109" name="l00109"></a><span class="lineno">  109</span><span class="comment">   */</span></div>
<div class="line"><a id="l00110" name="l00110"></a><span class="lineno">  110</span> </div>
<div class="line"><a id="l00111" name="l00111"></a><span class="lineno">  111</span>  <span class="keywordflow">if</span> (nleft != 0) {</div>
<div class="line"><a id="l00112" name="l00112"></a><span class="lineno">  112</span>    <span class="keywordflow">while</span> (--nleft != 0) {</div>
<div class="line"><a id="l00113" name="l00113"></a><span class="lineno">  113</span>      <span class="keywordflow">if</span> ((*dst++ = *src++) == <span class="charliteral">&#39;\0&#39;</span>)</div>
<div class="line"><a id="l00114" name="l00114"></a><span class="lineno">  114</span>        <span class="keywordflow">break</span>;</div>
<div class="line"><a id="l00115" name="l00115"></a><span class="lineno">  115</span>    }</div>
<div class="line"><a id="l00116" name="l00116"></a><span class="lineno">  116</span>  }</div>
<div class="line"><a id="l00117" name="l00117"></a><span class="lineno">  117</span> </div>
<div class="line"><a id="l00118" name="l00118"></a><span class="lineno">  118</span>  <span class="comment">/*</span></div>
<div class="line"><a id="l00119" name="l00119"></a><span class="lineno">  119</span><span class="comment">   * Not enough room in dst, add</span></div>
<div class="line"><a id="l00120" name="l00120"></a><span class="lineno">  120</span><span class="comment">   * NUL and traverse rest of src.</span></div>
<div class="line"><a id="l00121" name="l00121"></a><span class="lineno">  121</span><span class="comment">   */</span></div>
<div class="line"><a id="l00122" name="l00122"></a><span class="lineno">  122</span> </div>
<div class="line"><a id="l00123" name="l00123"></a><span class="lineno">  123</span>  <span class="keywordflow">if</span> (nleft == 0) {</div>
<div class="line"><a id="l00124" name="l00124"></a><span class="lineno">  124</span>    <span class="keywordflow">if</span> (dsize != 0)</div>
<div class="line"><a id="l00125" name="l00125"></a><span class="lineno">  125</span>      *dst = <span class="charliteral">&#39;\0&#39;</span>; <span class="comment">/* NUL-terminate dst */</span></div>
<div class="line"><a id="l00126" name="l00126"></a><span class="lineno">  126</span>    <span class="keywordflow">while</span> (*src++);</div>
<div class="line"><a id="l00127" name="l00127"></a><span class="lineno">  127</span>  }</div>
<div class="line"><a id="l00128" name="l00128"></a><span class="lineno">  128</span> </div>
<div class="line"><a id="l00129" name="l00129"></a><span class="lineno">  129</span>  <span class="keywordflow">return</span> src - osrc - 1; <span class="comment">/* count does not include NUL */</span></div>
<div class="line"><a id="l00130" name="l00130"></a><span class="lineno">  130</span>}</div>
<div class="line"><a id="l00131" name="l00131"></a><span class="lineno">  131</span> </div>
<div class="line"><a id="l00132" name="l00132"></a><span class="lineno">  132</span><span class="preprocessor"># define strlcpy _sir_strlcpy</span></div>
<div class="line"><a id="l00133" name="l00133"></a><span class="lineno">  133</span><span class="preprocessor"># define SIR_IMPL_STRLCPY_DEF 1</span></div>
<div class="line"><a id="l00134" name="l00134"></a><span class="lineno">  134</span><span class="preprocessor">#endif </span><span class="comment">/* SIR_IMPL_STRLCPY */</span><span class="preprocessor"></span></div>
<div class="line"><a id="l00135" name="l00135"></a><span class="lineno">  135</span> </div>
<div class="line"><a id="l00136" name="l00136"></a><span class="lineno">  136</span><span class="comment">/*</span></div>
<div class="line"><a id="l00137" name="l00137"></a><span class="lineno">  137</span><span class="comment"> * -----------------------------------------------------------------------------</span></div>
<div class="line"><a id="l00138" name="l00138"></a><span class="lineno">  138</span><span class="comment"> * OpenBSD strnlen -- 1.9 2019/01/25 00:19:25 millert</span></div>
<div class="line"><a id="l00139" name="l00139"></a><span class="lineno">  139</span><span class="comment"> * -----------------------------------------------------------------------------</span></div>
<div class="line"><a id="l00140" name="l00140"></a><span class="lineno">  140</span><span class="comment"> */</span></div>
<div class="line"><a id="l00141" name="l00141"></a><span class="lineno">  141</span> </div>
<div class="line"><a id="l00142" name="l00142"></a><span class="lineno">  142</span><span class="preprocessor">#if (defined(SIR_IMPL_STRNLEN) || defined(SIR_IMPL_STRNDUP)) &amp;&amp; \</span></div>
<div class="line"><a id="l00143" name="l00143"></a><span class="lineno">  143</span><span class="preprocessor">     !defined(SIR_IMPL_STRNLEN_DEF)</span></div>
<div class="line"><a id="l00144" name="l00144"></a><span class="lineno">  144</span><span class="preprocessor"># undef strnlen</span></div>
<div class="line"><a id="l00145" name="l00145"></a><span class="lineno">  145</span> </div>
<div class="line"><a id="l00146" name="l00146"></a><span class="lineno">  146</span><span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">size_t</span></div>
<div class="line"><a id="l00147" name="l00147"></a><span class="lineno">  147</span>_sir_strnlen(<span class="keyword">const</span> <span class="keywordtype">char</span> *str, <span class="keywordtype">size_t</span> maxlen)</div>
<div class="line"><a id="l00148" name="l00148"></a><span class="lineno">  148</span>{</div>
<div class="line"><a id="l00149" name="l00149"></a><span class="lineno">  149</span>  <span class="keyword">const</span> <span class="keywordtype">char</span> *cp;</div>
<div class="line"><a id="l00150" name="l00150"></a><span class="lineno">  150</span> </div>
<div class="line"><a id="l00151" name="l00151"></a><span class="lineno">  151</span>  <span class="keywordflow">for</span> (cp = str; maxlen != 0 &amp;&amp; *cp != <span class="charliteral">&#39;\0&#39;</span>; cp++, maxlen--);</div>
<div class="line"><a id="l00152" name="l00152"></a><span class="lineno">  152</span> </div>
<div class="line"><a id="l00153" name="l00153"></a><span class="lineno">  153</span>  <span class="keywordflow">return</span> (<span class="keywordtype">size_t</span>)(cp - str);</div>
<div class="line"><a id="l00154" name="l00154"></a><span class="lineno">  154</span>}</div>
<div class="line"><a id="l00155" name="l00155"></a><span class="lineno">  155</span> </div>
<div class="line"><a id="l00156" name="l00156"></a><span class="lineno">  156</span><span class="preprocessor"># define strnlen _sir_strnlen</span></div>
<div class="line"><a id="l00157" name="l00157"></a><span class="lineno">  157</span><span class="preprocessor"># define SIR_IMPL_STRNLEN_DEF 1</span></div>
<div class="line"><a id="l00158" name="l00158"></a><span class="lineno">  158</span><span class="preprocessor">#endif </span><span class="comment">/* SIR_IMPL_STRNLEN */</span><span class="preprocessor"></span></div>
<div class="line"><a id="l00159" name="l00159"></a><span class="lineno">  159</span> </div>
<div class="line"><a id="l00160" name="l00160"></a><span class="lineno">  160</span><span class="comment">/*</span></div>
<div class="line"><a id="l00161" name="l00161"></a><span class="lineno">  161</span><span class="comment"> * -----------------------------------------------------------------------------</span></div>
<div class="line"><a id="l00162" name="l00162"></a><span class="lineno">  162</span><span class="comment"> * OpenBSD strndup -- 1.3 2019/01/25 00:19:25 millert</span></div>
<div class="line"><a id="l00163" name="l00163"></a><span class="lineno">  163</span><span class="comment"> * -----------------------------------------------------------------------------</span></div>
<div class="line"><a id="l00164" name="l00164"></a><span class="lineno">  164</span><span class="comment"> */</span></div>
<div class="line"><a id="l00165" name="l00165"></a><span class="lineno">  165</span> </div>
<div class="line"><a id="l00166" name="l00166"></a><span class="lineno">  166</span><span class="preprocessor">#if defined(SIR_IMPL_STRNDUP) &amp;&amp; !defined(SIR_IMPL_STRNDUP_DEF)</span></div>
<div class="line"><a id="l00167" name="l00167"></a><span class="lineno">  167</span><span class="preprocessor"># undef strndup</span></div>
<div class="line"><a id="l00168" name="l00168"></a><span class="lineno">  168</span> </div>
<div class="line"><a id="l00169" name="l00169"></a><span class="lineno">  169</span><span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">char</span>*</div>
<div class="line"><a id="l00170" name="l00170"></a><span class="lineno">  170</span>_sir_strndup(<span class="keyword">const</span> <span class="keywordtype">char</span> *str, <span class="keywordtype">size_t</span> maxlen)</div>
<div class="line"><a id="l00171" name="l00171"></a><span class="lineno">  171</span>{</div>
<div class="line"><a id="l00172" name="l00172"></a><span class="lineno">  172</span>  <span class="keywordtype">char</span>   *copy;</div>
<div class="line"><a id="l00173" name="l00173"></a><span class="lineno">  173</span>  <span class="keywordtype">size_t</span> len;</div>
<div class="line"><a id="l00174" name="l00174"></a><span class="lineno">  174</span> </div>
<div class="line"><a id="l00175" name="l00175"></a><span class="lineno">  175</span>  len  = _sir_strnlen(str, maxlen);</div>
<div class="line"><a id="l00176" name="l00176"></a><span class="lineno">  176</span> </div>
<div class="line"><a id="l00177" name="l00177"></a><span class="lineno">  177</span>  copy = (<span class="keywordtype">char</span>*)malloc(len + 1);</div>
<div class="line"><a id="l00178" name="l00178"></a><span class="lineno">  178</span>  <span class="keywordflow">if</span> (copy != NULL) {</div>
<div class="line"><a id="l00179" name="l00179"></a><span class="lineno">  179</span>    (void)memcpy(copy, str, len);</div>
<div class="line"><a id="l00180" name="l00180"></a><span class="lineno">  180</span>    copy[len] = <span class="charliteral">&#39;\0&#39;</span>;</div>
<div class="line"><a id="l00181" name="l00181"></a><span class="lineno">  181</span>  }</div>
<div class="line"><a id="l00182" name="l00182"></a><span class="lineno">  182</span> </div>
<div class="line"><a id="l00183" name="l00183"></a><span class="lineno">  183</span>  <span class="keywordflow">return</span> copy;</div>
<div class="line"><a id="l00184" name="l00184"></a><span class="lineno">  184</span>}</div>
<div class="line"><a id="l00185" name="l00185"></a><span class="lineno">  185</span> </div>
<div class="line"><a id="l00186" name="l00186"></a><span class="lineno">  186</span><span class="preprocessor"># define strndup _sir_strndup</span></div>
<div class="line"><a id="l00187" name="l00187"></a><span class="lineno">  187</span><span class="preprocessor"># define SIR_IMPL_STRNDUP_DEF 1</span></div>
<div class="line"><a id="l00188" name="l00188"></a><span class="lineno">  188</span><span class="preprocessor">#endif </span><span class="comment">/* SIR_IMPL_STRNDUP */</span><span class="preprocessor"></span></div>
<div class="line"><a id="l00189" name="l00189"></a><span class="lineno">  189</span> </div>
<div class="line"><a id="l00190" name="l00190"></a><span class="lineno">  190</span><span class="comment">/*</span></div>
<div class="line"><a id="l00191" name="l00191"></a><span class="lineno">  191</span><span class="comment"> * -----------------------------------------------------------------------------</span></div>
<div class="line"><a id="l00192" name="l00192"></a><span class="lineno">  192</span><span class="comment"> * OpenBSD strcasestr -- 1.4 2015/08/31 02:53:57 guenther</span></div>
<div class="line"><a id="l00193" name="l00193"></a><span class="lineno">  193</span><span class="comment"> * -----------------------------------------------------------------------------</span></div>
<div class="line"><a id="l00194" name="l00194"></a><span class="lineno">  194</span><span class="comment"> */</span></div>
<div class="line"><a id="l00195" name="l00195"></a><span class="lineno">  195</span> </div>
<div class="line"><a id="l00196" name="l00196"></a><span class="lineno">  196</span><span class="comment">/*</span></div>
<div class="line"><a id="l00197" name="l00197"></a><span class="lineno">  197</span><span class="comment"> * Copyright (c) 1990, 1993 The Regents of the University of California.</span></div>
<div class="line"><a id="l00198" name="l00198"></a><span class="lineno">  198</span><span class="comment"> *</span></div>
<div class="line"><a id="l00199" name="l00199"></a><span class="lineno">  199</span><span class="comment"> * All rights reserved.</span></div>
<div class="line"><a id="l00200" name="l00200"></a><span class="lineno">  200</span><span class="comment"> *</span></div>
<div class="line"><a id="l00201" name="l00201"></a><span class="lineno">  201</span><span class="comment"> * This code is derived from software contributed to Berkeley by Chris Torek.</span></div>
<div class="line"><a id="l00202" name="l00202"></a><span class="lineno">  202</span><span class="comment"> *</span></div>
<div class="line"><a id="l00203" name="l00203"></a><span class="lineno">  203</span><span class="comment"> * Redistribution and use in source and binary forms, with or without</span></div>
<div class="line"><a id="l00204" name="l00204"></a><span class="lineno">  204</span><span class="comment"> * modification, are permitted provided that the following conditions are met:</span></div>
<div class="line"><a id="l00205" name="l00205"></a><span class="lineno">  205</span><span class="comment"> *</span></div>
<div class="line"><a id="l00206" name="l00206"></a><span class="lineno">  206</span><span class="comment"> * 1. Redistributions of source code must retain the above copyright</span></div>
<div class="line"><a id="l00207" name="l00207"></a><span class="lineno">  207</span><span class="comment"> *    notice, this list of conditions and the following disclaimer.</span></div>
<div class="line"><a id="l00208" name="l00208"></a><span class="lineno">  208</span><span class="comment"> *</span></div>
<div class="line"><a id="l00209" name="l00209"></a><span class="lineno">  209</span><span class="comment"> * 2. Redistributions in binary form must reproduce the above copyright</span></div>
<div class="line"><a id="l00210" name="l00210"></a><span class="lineno">  210</span><span class="comment"> *    notice, this list of conditions and the following disclaimer in the</span></div>
<div class="line"><a id="l00211" name="l00211"></a><span class="lineno">  211</span><span class="comment"> *    documentation and/or other materials provided with the distribution.</span></div>
<div class="line"><a id="l00212" name="l00212"></a><span class="lineno">  212</span><span class="comment"> *</span></div>
<div class="line"><a id="l00213" name="l00213"></a><span class="lineno">  213</span><span class="comment"> * 3. Neither the name of the University nor the names of its contributors</span></div>
<div class="line"><a id="l00214" name="l00214"></a><span class="lineno">  214</span><span class="comment"> *    may be used to endorse or promote products derived from this software</span></div>
<div class="line"><a id="l00215" name="l00215"></a><span class="lineno">  215</span><span class="comment"> *    without specific prior written permission.</span></div>
<div class="line"><a id="l00216" name="l00216"></a><span class="lineno">  216</span><span class="comment"> *</span></div>
<div class="line"><a id="l00217" name="l00217"></a><span class="lineno">  217</span><span class="comment"> * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS &quot;AS IS&quot; AND</span></div>
<div class="line"><a id="l00218" name="l00218"></a><span class="lineno">  218</span><span class="comment"> * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE</span></div>
<div class="line"><a id="l00219" name="l00219"></a><span class="lineno">  219</span><span class="comment"> * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE</span></div>
<div class="line"><a id="l00220" name="l00220"></a><span class="lineno">  220</span><span class="comment"> * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE</span></div>
<div class="line"><a id="l00221" name="l00221"></a><span class="lineno">  221</span><span class="comment"> * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL</span></div>
<div class="line"><a id="l00222" name="l00222"></a><span class="lineno">  222</span><span class="comment"> * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS</span></div>
<div class="line"><a id="l00223" name="l00223"></a><span class="lineno">  223</span><span class="comment"> * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)</span></div>
<div class="line"><a id="l00224" name="l00224"></a><span class="lineno">  224</span><span class="comment"> * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT</span></div>
<div class="line"><a id="l00225" name="l00225"></a><span class="lineno">  225</span><span class="comment"> * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY</span></div>
<div class="line"><a id="l00226" name="l00226"></a><span class="lineno">  226</span><span class="comment"> * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF</span></div>
<div class="line"><a id="l00227" name="l00227"></a><span class="lineno">  227</span><span class="comment"> * SUCH DAMAGE.</span></div>
<div class="line"><a id="l00228" name="l00228"></a><span class="lineno">  228</span><span class="comment"> */</span></div>
<div class="line"><a id="l00229" name="l00229"></a><span class="lineno">  229</span> </div>
<div class="line"><a id="l00230" name="l00230"></a><span class="lineno">  230</span><span class="preprocessor">#if defined(SIR_IMPL_STRCASESTR) &amp;&amp; !defined(SIR_IMPL_STRCASESTR_DEF)</span></div>
<div class="line"><a id="l00231" name="l00231"></a><span class="lineno">  231</span><span class="preprocessor"># undef strcasestr</span></div>
<div class="line"><a id="l00232" name="l00232"></a><span class="lineno">  232</span> </div>
<div class="line"><a id="l00233" name="l00233"></a><span class="lineno">  233</span><span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">char</span>*</div>
<div class="line"><a id="l00234" name="l00234"></a><span class="lineno">  234</span>_sir_strcasestr(<span class="keyword">const</span> <span class="keywordtype">char</span> *s, <span class="keyword">const</span> <span class="keywordtype">char</span> *find)</div>
<div class="line"><a id="l00235" name="l00235"></a><span class="lineno">  235</span>{</div>
<div class="line"><a id="l00236" name="l00236"></a><span class="lineno">  236</span>  <span class="keywordtype">char</span> c, sc;</div>
<div class="line"><a id="l00237" name="l00237"></a><span class="lineno">  237</span>  <span class="keywordtype">size_t</span> len;</div>
<div class="line"><a id="l00238" name="l00238"></a><span class="lineno">  238</span> </div>
<div class="line"><a id="l00239" name="l00239"></a><span class="lineno">  239</span>  <span class="keywordflow">if</span> ((c = *find++) != 0) {</div>
<div class="line"><a id="l00240" name="l00240"></a><span class="lineno">  240</span>    c = (char)tolower((<span class="keywordtype">unsigned</span> <span class="keywordtype">char</span>)c);</div>
<div class="line"><a id="l00241" name="l00241"></a><span class="lineno">  241</span>    len = strlen(find);</div>
<div class="line"><a id="l00242" name="l00242"></a><span class="lineno">  242</span>    <span class="keywordflow">do</span> {</div>
<div class="line"><a id="l00243" name="l00243"></a><span class="lineno">  243</span>      <span class="keywordflow">do</span> {</div>
<div class="line"><a id="l00244" name="l00244"></a><span class="lineno">  244</span>        <span class="keywordflow">if</span> ((sc = *s++) == 0)</div>
<div class="line"><a id="l00245" name="l00245"></a><span class="lineno">  245</span>          <span class="keywordflow">return</span> NULL;</div>
<div class="line"><a id="l00246" name="l00246"></a><span class="lineno">  246</span>      } <span class="keywordflow">while</span> ((<span class="keywordtype">char</span>)tolower((<span class="keywordtype">unsigned</span> <span class="keywordtype">char</span>)sc) != c);</div>
<div class="line"><a id="l00247" name="l00247"></a><span class="lineno">  247</span>    } <span class="keywordflow">while</span> (strncasecmp(s, find, len) != 0);</div>
<div class="line"><a id="l00248" name="l00248"></a><span class="lineno">  248</span>    s--;</div>
<div class="line"><a id="l00249" name="l00249"></a><span class="lineno">  249</span>  }</div>
<div class="line"><a id="l00250" name="l00250"></a><span class="lineno">  250</span> </div>
<div class="line"><a id="l00251" name="l00251"></a><span class="lineno">  251</span>  <span class="keywordflow">return</span> (<span class="keywordtype">char</span> *)s;</div>
<div class="line"><a id="l00252" name="l00252"></a><span class="lineno">  252</span>}</div>
<div class="line"><a id="l00253" name="l00253"></a><span class="lineno">  253</span> </div>
<div class="line"><a id="l00254" name="l00254"></a><span class="lineno">  254</span><span class="preprocessor"># define strcasestr _sir_strcasestr</span></div>
<div class="line"><a id="l00255" name="l00255"></a><span class="lineno">  255</span><span class="preprocessor"># define SIR_IMPL_STRCASESTR_DEF 1</span></div>
<div class="line"><a id="l00256" name="l00256"></a><span class="lineno">  256</span><span class="preprocessor">#endif </span><span class="comment">/* SIR_IMPL_STRCASESTR */</span><span class="preprocessor"></span></div>
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